I have an asus m50sa notebook that has 4965agn wireless card. When I bought it i ran Vista x86 and i was able to change the mac address, but now since i had upgraded to Windows 7 x64 I am unable to change the mac address, and i need to, because my isp requires my mac address and i want some mobility in my home, and with ethernet i can't do that. Does anyone knows why i can't do that in Windows 7? Please help me!